Fabrication of Coatings on the Surface of Magnesium Alloy by Plasma Electrolytic Oxidation Using ZrO₂ and SiO₂ Nanoparticles

Figure 9

Bode diagrams for samples of magnesium alloy MA8 without coating (1) and with PEO coating, formed in the different electrolyte, without nanoparticles (2) and with zirconia (3) and silica (4) nanopowders.